题目内容

对于高压试验测量仪表的叙述正确的有( )。

A. 球隙可以测量任何形式的电压
B. 静电电压表不能测量冲击试验电压
C. 电阻分压器的分压比是(R1+R2)/R2
D. 电容分压器的分压比是(C1+C2)/C2

查看答案

搜索结果不匹配？点我反馈

更多问题

在实验室进行高电压试验中,广泛采用( )等仪器、装置进行测量高电压。

A. 球隙
B. 静电电压表
C. 电压互感器配合低压电压表
D. 高压分压器

用铜球间隙测量高电压，需满足( )条件才能保证国家标准规定的测量不确定度。

A. 铜球距离与铜球直径之比不大于0.5
B. 结构和使用条件必须符合IEC的规定
C. 需进行气压和温度的校正
D. 应去除灰尘和纤维的影响

请将下列段落翻译成汉语：The navigation database contains all of the information required for building a flight plan and information relevant to it. These includewaypoints,airways(highways in the sky),radio navigation aidsincludingDME (Distance Measuring Equipment),VOR (VHF Omni-directional Range)andNDB (Nondirectional beacons),airports,runways,Standard Instrument Departure (SID),Standard Terminal Arrival (STAR),holding patternsand a variety of related and often installation specific information.

请将下列段落翻译成汉语：The automatic flight control systems (AFCS)consist of three independent systems: digital flight control system (DFCS), yaw damper system, and autothrottle system. These systems provide automatic airplane stabilization about the pitch, roll, and yaw axes and control the airplane with selective guidance from radio, heading, flight management computer, and air data computer inputs.